oozenoz

Certainly.

First, let's assume you want to use a 4-digit number to dial across a set of tandem trunks - tie lines to another phone system, T1 or E1 span to a fax server, the usage does not matter. The pattern is 6xxx.

When you build the trunks, you assign a Route Pattern to it; for this example let's assume your route pattern is 88.

You will set up an entry in the universal dial plan table, to define how to handle the 6xxx pattern, by adding UDP entry with the following:

Matching pattern 6
Len 4
Del 0
Net aar
Conv no

This tells the system all 6xxx calls are to use AAR to define where the calls route.

Then in your AAR table, set up the following:

Dialed String 6
Min 4
Max 4
Route Pattern 88
call type aar

This will force any calls of pattern 6xxx to the trunks associated with route pattern 88.

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- calvin